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प्रश्न
Answer the following question:
Which element of the first transition series has highest second ionisation enthalpy?
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उत्तर
Out of all the elements of the first transition series copper has the highest second ionisation enthalpy.
Electronic configuration of Copper is: \[\ce{3d^10 4s^1}\]
After the Loss of first electron from the 4s copper acquires \[\ce{3d^10}\] configuration which is stable. Therefore, removal of second electron from the field 3-D orbital is very difficult and requires high amount of energy.
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संबंधित प्रश्न
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(i) \[\ce{Co^{2+}}\]
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(i) \[\ce{Ti^3+}\]
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| Column I (Catalyst) | Column II (Process) |
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| (ii) \[\ce{Cu2C12}\] | (b) Contact process |
| (iii) \[\ce{V2O5}\] | (c) Vegetable oil to ghee |
| (iv) Finely divided iron | (d) Sandmeyer reaction |
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